Release v0.0.0.12

Read mapping: Match by 'name' field instead of 'displayKey' because
many fields use USER_DEFINED as displayKey (street, city, state,
comment). Actual name fields: firstname, familyname, company, phone,
mobile, homephone, fax, e-mail, url, comment, street, city, postcode,
state, country.

Write mapping: Use correct 4-block structure (contact, address,
telephone, email) with proper resourceKey values matching the
Starface internal format.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

installer/setup.iss

@@ -2,7 +2,7 @@
 ; Erfordert Inno Setup 6.x (https://jrsoftware.org/isinfo.php)
 
 #define MyAppName "Starface Outlook Sync"
-#define MyAppVersion "0.0.0.2"
+#define MyAppVersion "0.0.0.12"
 #define MyAppPublisher "HackerSoft - Hacker-Net Telekommunikation"
 #define MyAppURL "https://www.hacker-net.de"
 #define MyAppExeName "StarfaceOutlookSync.exe"

src/StarfaceOutlookSync/Models/UserSettings.cs

@@ -0,0 +1,37 @@
+using System;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace StarfaceOutlookSync.Models
+{
+    public class UserSettings
+    {
+        public bool StartMinimized { get; set; } = false;
+
+        private static readonly string SettingsFile = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+            "StarfaceOutlookSync", "settings.json");
+
+        public static UserSettings Load()
+        {
+            try
+            {
+                if (File.Exists(SettingsFile))
+                    return JsonConvert.DeserializeObject<UserSettings>(File.ReadAllText(SettingsFile))
+                           ?? new UserSettings();
+            }
+            catch { }
+            return new UserSettings();
+        }
+
+        public void Save()
+        {
+            try
+            {
+                Directory.CreateDirectory(Path.GetDirectoryName(SettingsFile));
+                File.WriteAllText(SettingsFile, JsonConvert.SerializeObject(this, Formatting.Indented));
+            }
+            catch { }
+        }
+    }
+}

src/StarfaceOutlookSync/Services/OutlookContactsService.cs

@@ -2,44 +2,75 @@ using System;
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
 using StarfaceOutlookSync.Models;
-using Outlook = Microsoft.Office.Interop.Outlook;
 
 namespace StarfaceOutlookSync.Services
 {
+    /// <summary>
+    /// Zugriff auf Outlook-Kontakte per dynamic COM.
+    /// Funktioniert mit jeder Outlook Classic Version (2013-2024)
+    /// ohne Abhaengigkeit von einer bestimmten Interop-DLL.
+    /// </summary>
     public class OutlookContactsService : IDisposable
     {
-        private Outlook.Application _outlookApp;
+        private dynamic _outlookApp;
         private bool _weStartedOutlook;
 
-        // Marshal.GetActiveObject existiert nicht in .NET 8, daher P/Invoke
+        // OlDefaultFolders.olFolderContacts = 10
+        private const int OlFolderContacts = 10;
+        // OlItemType.olContactItem = 2
+        private const int OlContactItem = 2;
+
         [DllImport("oleaut32.dll", PreserveSig = false)]
-        private static extern void GetActiveObject([MarshalAs(UnmanagedType.LPStruct)] Guid rclsid, IntPtr pvReserved, [MarshalAs(UnmanagedType.IUnknown)] out object ppunk);
+        private static extern void GetActiveObject(
+            [MarshalAs(UnmanagedType.LPStruct)] Guid rclsid,
+            IntPtr pvReserved,
+            [MarshalAs(UnmanagedType.IUnknown)] out object ppunk);
 
         private static object GetActiveComObject(string progId)
         {
-            var clsid = Type.GetTypeFromProgID(progId, true).GUID;
-            GetActiveObject(clsid, IntPtr.Zero, out var obj);
+            var type = Type.GetTypeFromProgID(progId, false);
+            if (type == null) return null;
+            GetActiveObject(type.GUID, IntPtr.Zero, out var obj);
             return obj;
         }
 
-        private Outlook.Application GetOutlookApp()
+        private dynamic GetOutlookApp()
         {
             if (_outlookApp != null) return _outlookApp;
 
+            // Versuch 1: Laufende Outlook-Instanz finden
             try
             {
-                // Versuche laufende Outlook-Instanz zu finden
-                _outlookApp = (Outlook.Application)GetActiveComObject("Outlook.Application");
-                _weStartedOutlook = false;
-            }
-            catch
-            {
-                // Outlook starten falls nicht laufend
-                _outlookApp = new Outlook.Application();
-                _weStartedOutlook = true;
+                var obj = GetActiveComObject("Outlook.Application");
+                if (obj != null)
+                {
+                    _outlookApp = obj;
+                    _weStartedOutlook = false;
+                    return _outlookApp;
+                }
             }
+            catch { }
 
-            return _outlookApp;
+            // Versuch 2: Outlook per COM starten
+            try
+            {
+                var outlookType = Type.GetTypeFromProgID("Outlook.Application", false);
+                if (outlookType != null)
+                {
+                    _outlookApp = Activator.CreateInstance(outlookType);
+                    _weStartedOutlook = true;
+                    return _outlookApp;
+                }
+            }
+            catch { }
+
+            throw new InvalidOperationException(
+                "Outlook Classic konnte nicht gefunden werden.\n\n" +
+                "Moegliche Ursachen:\n" +
+                "- Outlook Classic ist nicht installiert\n" +
+                "- Outlook Classic ist nicht gestartet\n" +
+                "- Das neue Outlook wird verwendet (wird noch nicht unterstuetzt)\n\n" +
+                "Bitte Outlook Classic starten und erneut versuchen.");
         }
 
         public List<string> GetContactFolderPaths()
@@ -50,128 +81,235 @@ namespace StarfaceOutlookSync.Services
                 var app = GetOutlookApp();
                 var ns = app.GetNamespace("MAPI");
 
-                // Standard-Kontaktordner
-                var defaultFolder = ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
-                folders.Add(defaultFolder.FolderPath);
-
-                // Unterordner
-                AddSubFolders(defaultFolder, folders);
-
-                // Weitere Kontaktordner in anderen Stores
-                foreach (Outlook.Store store in ns.Stores)
+                // Alle Stores durchgehen
+                var stores = ns.Stores;
+                for (int i = 1; i <= (int)stores.Count; i++)
                 {
                     try
                     {
+                        var store = stores[i];
                         var rootFolder = store.GetRootFolder();
-                        FindContactFolders(rootFolder, folders);
+                        FindContactFoldersRecursive(rootFolder, folders);
+                        Marshal.ReleaseComObject(rootFolder);
+                        Marshal.ReleaseComObject(store);
+                    }
+                    catch (Exception ex)
+                    {
+                        System.Diagnostics.Debug.WriteLine($"Error scanning store {i}: {ex.Message}");
+                    }
+                }
+
+                // Falls nichts gefunden, Standard-Kontaktordner als Fallback
+                if (folders.Count == 0)
+                {
+                    try
+                    {
+                        var defaultFolder = ns.GetDefaultFolder(OlFolderContacts);
+                        folders.Add((string)defaultFolder.FolderPath);
+                        Marshal.ReleaseComObject(defaultFolder);
                     }
                     catch { }
                 }
 
+                Marshal.ReleaseComObject(stores);
                 Marshal.ReleaseComObject(ns);
             }
             catch (Exception ex)
             {
                 System.Diagnostics.Debug.WriteLine($"Error getting folders: {ex.Message}");
+                throw;
             }
 
             return folders;
         }
 
-        private void AddSubFolders(Outlook.MAPIFolder folder, List<string> paths)
+        private void FindContactFoldersRecursive(dynamic folder, List<string> paths)
         {
-            foreach (Outlook.MAPIFolder sub in folder.Folders)
+            try
             {
-                if (sub.DefaultItemType == Outlook.OlItemType.olContactItem)
+                if ((int)folder.DefaultItemType == OlContactItem)
                 {
-                    if (!paths.Contains(sub.FolderPath))
-                        paths.Add(sub.FolderPath);
-                    AddSubFolders(sub, paths);
+                    string path = folder.FolderPath;
+                    if (!paths.Contains(path))
+                        paths.Add(path);
                 }
+
+                var subFolders = folder.Folders;
+                for (int i = 1; i <= (int)subFolders.Count; i++)
+                {
+                    try
+                    {
+                        var sub = subFolders[i];
+                        FindContactFoldersRecursive(sub, paths);
+                        Marshal.ReleaseComObject(sub);
+                    }
+                    catch { }
+                }
+                Marshal.ReleaseComObject(subFolders);
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"Error scanning folder: {ex.Message}");
             }
         }
 
-        private void FindContactFolders(Outlook.MAPIFolder folder, List<string> paths)
+        private dynamic FindFolderByPath(dynamic folder, string targetPath)
         {
-            if (folder.DefaultItemType == Outlook.OlItemType.olContactItem)
+            try
             {
-                if (!paths.Contains(folder.FolderPath))
-                    paths.Add(folder.FolderPath);
-            }
+                string currentPath = folder.FolderPath;
+                if (currentPath == targetPath)
+                    return folder;
 
-            foreach (Outlook.MAPIFolder sub in folder.Folders)
-            {
-                FindContactFolders(sub, paths);
+                var subs = folder.Folders;
+                for (int i = 1; i <= (int)subs.Count; i++)
+                {
+                    try
+                    {
+                        var sub = subs[i];
+                        var match = FindFolderByPath(sub, targetPath);
+                        if (match != null) return match;
+                        Marshal.ReleaseComObject(sub);
+                    }
+                    catch { }
+                }
+                Marshal.ReleaseComObject(subs);
             }
+            catch { }
+            return null;
         }
 
-        private Outlook.MAPIFolder GetFolderByPath(string folderPath)
+        private dynamic GetFolderByPath(string folderPath)
         {
             var app = GetOutlookApp();
             var ns = app.GetNamespace("MAPI");
 
-            // Standard-Kontaktordner als Fallback
             if (string.IsNullOrEmpty(folderPath))
-                return ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
+                return ns.GetDefaultFolder(OlFolderContacts);
 
             try
             {
-                // Pfad durchlaufen
-                var parts = folderPath.Split(new[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
-                Outlook.MAPIFolder current = null;
-
-                foreach (Outlook.Store store in ns.Stores)
+                // Versuch 1: Alle Kontaktordner durchsuchen und per FolderPath matchen
+                var stores = ns.Stores;
+                for (int i = 1; i <= (int)stores.Count; i++)
                 {
-                    if (store.GetRootFolder().Name == parts[0] ||
-                        store.GetRootFolder().FolderPath.TrimStart('\\') == parts[0])
+                    try
                     {
-                        current = store.GetRootFolder();
-                        break;
-                    }
-                }
-
-                if (current == null)
-                    return ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
-
-                for (int i = 1; i < parts.Length; i++)
-                {
-                    bool found = false;
-                    foreach (Outlook.MAPIFolder sub in current.Folders)
-                    {
-                        if (sub.Name == parts[i])
+                        var store = stores[i];
+                        var root = store.GetRootFolder();
+                        var match = FindFolderByPath(root, folderPath);
+                        if (match != null)
                         {
-                            current = sub;
-                            found = true;
-                            break;
+                            Marshal.ReleaseComObject(stores);
+                            return match;
                         }
+                        Marshal.ReleaseComObject(root);
+                        Marshal.ReleaseComObject(store);
                     }
-                    if (!found)
-                        return ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
+                    catch { }
+                }
+                Marshal.ReleaseComObject(stores);
+
+                // Versuch 2: Namespace.Folders direkt navigieren
+                var parts = folderPath.Split(new[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
+                if (parts.Length >= 1)
+                {
+                    var topFolders = ns.Folders;
+                    for (int i = 1; i <= (int)topFolders.Count; i++)
+                    {
+                        var topFolder = topFolders[i];
+                        if ((string)topFolder.Name == parts[0])
+                        {
+                            dynamic current = topFolder;
+                            for (int p = 1; p < parts.Length; p++)
+                            {
+                                bool found = false;
+                                var subs = current.Folders;
+                                for (int j = 1; j <= (int)subs.Count; j++)
+                                {
+                                    var sub = subs[j];
+                                    if ((string)sub.Name == parts[p])
+                                    {
+                                        current = sub;
+                                        found = true;
+                                        break;
+                                    }
+                                    Marshal.ReleaseComObject(sub);
+                                }
+                                Marshal.ReleaseComObject(subs);
+                                if (!found) { current = null; break; }
+                            }
+                            if (current != null)
+                            {
+                                Marshal.ReleaseComObject(topFolders);
+                                return current;
+                            }
+                        }
+                        Marshal.ReleaseComObject(topFolder);
+                    }
+                    Marshal.ReleaseComObject(topFolders);
                 }
 
-                return current;
+                System.Diagnostics.Debug.WriteLine($"Folder not found by path: {folderPath}, using default");
+                return ns.GetDefaultFolder(OlFolderContacts);
             }
             catch
             {
-                return ns.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
+                return ns.GetDefaultFolder(OlFolderContacts);
             }
         }
 
         public List<UnifiedContact> GetContacts(string folderPath)
         {
             var contacts = new List<UnifiedContact>();
-
             try
             {
                 var folder = GetFolderByPath(folderPath);
-                var items = folder.Items;
+                System.Diagnostics.Debug.WriteLine($"Reading contacts from: {(string)folder.FolderPath}");
 
-                foreach (var item in items)
+                var items = folder.Items;
+                int count = (int)items.Count;
+                System.Diagnostics.Debug.WriteLine($"Items count: {count}");
+
+                for (int i = 1; i <= count; i++)
                 {
-                    if (item is Outlook.ContactItem ci)
+                    dynamic item = null;
+                    try
                     {
-                        contacts.Add(MapFromOutlook(ci));
-                        Marshal.ReleaseComObject(ci);
+                        item = items[i];
+                        int itemClass = -1;
+                        try { itemClass = (int)item.Class; } catch { }
+
+                        // olContact = 40, aber manche Kontakte melden Class anders
+                        // Versuch einfach die Kontakt-Felder zu lesen
+                        if (itemClass == 40)
+                        {
+                            contacts.Add(MapFromOutlook(item));
+                        }
+                        else
+                        {
+                            // Fallback: Pruefen ob es trotzdem ein Kontakt ist
+                            try
+                            {
+                                string eid = item.EntryID;
+                                string fn = item.FirstName;
+                                string ln = item.LastName;
+                                // Hat Kontakt-Felder -> ist ein Kontakt
+                                contacts.Add(MapFromOutlook(item));
+                            }
+                            catch
+                            {
+                                // Kein Kontakt, ueberspringen
+                            }
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        System.Diagnostics.Debug.WriteLine($"Error reading item {i}: {ex.Message}");
+                    }
+                    finally
+                    {
+                        if (item != null) try { Marshal.ReleaseComObject(item); } catch { }
                     }
                 }
 
@@ -191,7 +329,8 @@ namespace StarfaceOutlookSync.Services
             try
             {
                 var folder = GetFolderByPath(folderPath);
-                var ci = (Outlook.ContactItem)folder.Items.Add(Outlook.OlItemType.olContactItem);
+                var items = folder.Items;
+                dynamic ci = items.Add(OlContactItem);
 
                 MapToOutlook(contact, ci);
                 ci.Save();
@@ -199,6 +338,7 @@ namespace StarfaceOutlookSync.Services
                 contact.OutlookEntryId = ci.EntryID;
 
                 Marshal.ReleaseComObject(ci);
+                Marshal.ReleaseComObject(items);
                 Marshal.ReleaseComObject(folder);
 
                 return contact;
@@ -216,7 +356,7 @@ namespace StarfaceOutlookSync.Services
             {
                 var app = GetOutlookApp();
                 var ns = app.GetNamespace("MAPI");
-                var ci = (Outlook.ContactItem)ns.GetItemFromID(entryId);
+                dynamic ci = ns.GetItemFromID(entryId);
 
                 MapToOutlook(contact, ci);
                 ci.Save();
@@ -239,7 +379,7 @@ namespace StarfaceOutlookSync.Services
             {
                 var app = GetOutlookApp();
                 var ns = app.GetNamespace("MAPI");
-                var ci = (Outlook.ContactItem)ns.GetItemFromID(entryId);
+                dynamic ci = ns.GetItemFromID(entryId);
 
                 ci.Delete();
                 Marshal.ReleaseComObject(ci);
@@ -254,36 +394,46 @@ namespace StarfaceOutlookSync.Services
             }
         }
 
-        private UnifiedContact MapFromOutlook(Outlook.ContactItem ci)
+        private UnifiedContact MapFromOutlook(dynamic ci)
         {
             return new UnifiedContact
             {
-                OutlookEntryId = ci.EntryID ?? "",
-                FirstName = ci.FirstName ?? "",
-                LastName = ci.LastName ?? "",
-                Company = ci.CompanyName ?? "",
-                JobTitle = ci.JobTitle ?? "",
-                Email = ci.Email1Address ?? "",
-                EmailSecondary = ci.Email2Address ?? "",
-                PhoneWork = ci.BusinessTelephoneNumber ?? "",
-                PhoneMobile = ci.MobileTelephoneNumber ?? "",
-                PhoneHome = ci.HomeTelephoneNumber ?? "",
-                Fax = ci.BusinessFaxNumber ?? "",
-                Street = ci.BusinessAddressStreet ?? "",
-                City = ci.BusinessAddressCity ?? "",
-                PostalCode = ci.BusinessAddressPostalCode ?? "",
-                State = ci.BusinessAddressState ?? "",
-                Country = ci.BusinessAddressCountry ?? "",
-                Website = ci.WebPage ?? "",
-                Notes = ci.Body ?? "",
-                Salutation = ci.Title ?? "",
-                Title = ci.Suffix ?? "",
-                Birthday = ci.Birthday != DateTime.MinValue && ci.Birthday.Year > 1900
-                    ? ci.Birthday.ToString("yyyy-MM-dd") : ""
+                OutlookEntryId = (string)(ci.EntryID ?? ""),
+                FirstName = (string)(ci.FirstName ?? ""),
+                LastName = (string)(ci.LastName ?? ""),
+                Company = (string)(ci.CompanyName ?? ""),
+                JobTitle = (string)(ci.JobTitle ?? ""),
+                Email = (string)(ci.Email1Address ?? ""),
+                EmailSecondary = (string)(ci.Email2Address ?? ""),
+                PhoneWork = (string)(ci.BusinessTelephoneNumber ?? ""),
+                PhoneMobile = (string)(ci.MobileTelephoneNumber ?? ""),
+                PhoneHome = (string)(ci.HomeTelephoneNumber ?? ""),
+                Fax = (string)(ci.BusinessFaxNumber ?? ""),
+                Street = (string)(ci.BusinessAddressStreet ?? ""),
+                City = (string)(ci.BusinessAddressCity ?? ""),
+                PostalCode = (string)(ci.BusinessAddressPostalCode ?? ""),
+                State = (string)(ci.BusinessAddressState ?? ""),
+                Country = (string)(ci.BusinessAddressCountry ?? ""),
+                Website = (string)(ci.WebPage ?? ""),
+                Notes = (string)(ci.Body ?? ""),
+                Salutation = (string)(ci.Title ?? ""),
+                Birthday = GetBirthdayString(ci)
             };
         }
 
-        private void MapToOutlook(UnifiedContact contact, Outlook.ContactItem ci)
+        private string GetBirthdayString(dynamic ci)
+        {
+            try
+            {
+                DateTime bday = ci.Birthday;
+                if (bday.Year > 1900 && bday != DateTime.MinValue)
+                    return bday.ToString("yyyy-MM-dd");
+            }
+            catch { }
+            return "";
+        }
+
+        private void MapToOutlook(UnifiedContact contact, dynamic ci)
         {
             ci.FirstName = contact.FirstName;
             ci.LastName = contact.LastName;
@@ -320,7 +470,7 @@ namespace StarfaceOutlookSync.Services
                 {
                     try { _outlookApp.Quit(); } catch { }
                 }
-                Marshal.ReleaseComObject(_outlookApp);
+                try { Marshal.ReleaseComObject(_outlookApp); } catch { }
                 _outlookApp = null;
             }
         }

src/StarfaceOutlookSync/Services/StarfaceApiClient.cs

@@ -155,11 +155,14 @@ namespace StarfaceOutlookSync.Services
             return books;
         }
 
+        public event Action<string> OnDebug;
+
         public async Task<List<UnifiedContact>> GetContactsAsync(StarfaceAddressBook book)
         {
             var contacts = new List<UnifiedContact>();
             int page = 0;
             const int pageSize = 200;
+            bool firstPage = true;
 
             while (true)
             {
@@ -172,11 +175,68 @@ namespace StarfaceOutlookSync.Services
                 var resp = await _http.GetAsync($"{_baseUrl}/contacts?{query}");
                 if (!resp.IsSuccessStatusCode) break;
 
-                var array = JArray.Parse(await resp.Content.ReadAsStringAsync());
+                var body = await resp.Content.ReadAsStringAsync();
+                JArray array;
+
+                // Die API gibt je nach Version ein Array oder ein Objekt mit "items" zurueck
+                var token = JToken.Parse(body);
+                if (token is JArray directArray)
+                {
+                    array = directArray;
+                }
+                else if (token is JObject obj)
+                {
+                    // Versuche gaengige Felder: items, contacts, data, results
+                    array = (obj["items"] ?? obj["contacts"] ?? obj["data"] ?? obj["results"]) as JArray;
+                    if (array == null)
+                    {
+                        // Einzelnes Kontakt-Objekt? Dann in Array wrappen
+                        if (obj["id"] != null && obj["blocks"] != null)
+                        {
+                            array = new JArray { obj };
+                        }
+                        else
+                        {
+                            System.Diagnostics.Debug.WriteLine($"Unerwartete Starface-Antwort: {body.Substring(0, Math.Min(200, body.Length))}");
+                            break;
+                        }
+                    }
+                }
+                else
+                {
+                    break;
+                }
+
                 if (array.Count == 0) break;
 
+                OnDebug?.Invoke($"Seite {page}: {array.Count} Kontakte in Liste");
+
+                // Die Listen-API gibt nur Summary zurueck.
+                // Jeden Kontakt einzeln abrufen fuer alle Felder.
                 foreach (var item in array)
-                    contacts.Add(MapFromStarface(item));
+                {
+                    var id = item["id"]?.ToString();
+                    if (string.IsNullOrEmpty(id)) continue;
+
+                    try
+                    {
+                        var detailResp = await _http.GetAsync($"{_baseUrl}/contacts/{id}");
+                        if (detailResp.IsSuccessStatusCode)
+                        {
+                            var detailBody = await detailResp.Content.ReadAsStringAsync();
+                            var detailObj = JObject.Parse(detailBody);
+
+                            if (firstPage)
+                            {
+                                OnDebug?.Invoke($"Starface Kontakt-Detail (1. Kontakt):\n{detailObj.ToString(Formatting.Indented)}");
+                                firstPage = false;
+                            }
+
+                            contacts.Add(MapFromStarface(detailObj));
+                        }
+                    }
+                    catch { }
+                }
 
                 if (array.Count < pageSize) break;
                 page++;
@@ -224,7 +284,10 @@ namespace StarfaceOutlookSync.Services
             var contact = new UnifiedContact();
             contact.StarfaceId = item["id"]?.ToString() ?? "";
 
-            var attrs = new Dictionary<string, string>();
+            // Attribute per "name"-Feld mappen (zuverlaessiger als displayKey,
+            // weil viele Felder USER_DEFINED als displayKey haben)
+            var byName = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+            var byDisplayKey = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
             var blocks = item["blocks"] as JArray;
             if (blocks != null)
             {
@@ -234,79 +297,123 @@ namespace StarfaceOutlookSync.Services
                     if (blockAttrs == null) continue;
                     foreach (var attr in blockAttrs)
                     {
-                        var key = attr["displayKey"]?.ToString() ?? "";
+                        var name = attr["name"]?.ToString() ?? "";
+                        var displayKey = attr["displayKey"]?.ToString() ?? "";
                         var val = attr["value"]?.ToString() ?? "";
                         if (!string.IsNullOrEmpty(val))
-                            attrs[key] = val;
+                        {
+                            if (!string.IsNullOrEmpty(name))
+                                byName[name] = val;
+                            // displayKey nur als Fallback (viele sind USER_DEFINED)
+                            if (!string.IsNullOrEmpty(displayKey) && displayKey != "USER_DEFINED")
+                                byDisplayKey[displayKey] = val;
+                        }
                     }
                 }
             }
 
-            contact.FirstName = attrs.GetValueOrDefault("NAME", "");
-            contact.LastName = attrs.GetValueOrDefault("SURNAME", "");
-            contact.Company = attrs.GetValueOrDefault("COMPANY", "");
-            contact.JobTitle = attrs.GetValueOrDefault("JOB_TITLE", "");
-            contact.Email = attrs.GetValueOrDefault("EMAIL", "");
-            contact.PhoneWork = attrs.GetValueOrDefault("OFFICE_PHONE_NUMBER", "");
-            contact.PhoneMobile = attrs.GetValueOrDefault("MOBILE_PHONE_NUMBER", "");
-            contact.PhoneHome = attrs.GetValueOrDefault("PRIVATE_PHONE_NUMBER", "");
-            contact.Fax = attrs.GetValueOrDefault("FAX_NUMBER", "");
-            contact.Street = attrs.GetValueOrDefault("STREET", "");
-            contact.City = attrs.GetValueOrDefault("CITY", "");
-            contact.PostalCode = attrs.GetValueOrDefault("POSTAL_CODE", "");
-            contact.State = attrs.GetValueOrDefault("STATE", "");
-            contact.Country = attrs.GetValueOrDefault("COUNTRY", "");
-            contact.Website = attrs.GetValueOrDefault("URL", "");
-            contact.Notes = attrs.GetValueOrDefault("NOTE", "");
-            contact.Salutation = attrs.GetValueOrDefault("SALUTATION", "");
-            contact.Title = attrs.GetValueOrDefault("TITLE", "");
-            contact.Birthday = attrs.GetValueOrDefault("BIRTHDAY", "");
+            // Primaer nach name-Feld mappen, Fallback auf displayKey
+            string Get(string name, string displayKey = null)
+            {
+                if (byName.TryGetValue(name, out var v)) return v;
+                if (displayKey != null && byDisplayKey.TryGetValue(displayKey, out v)) return v;
+                return "";
+            }
+
+            contact.FirstName = Get("firstname", "NAME");
+            contact.LastName = Get("familyname", "SURNAME");
+            contact.Company = Get("company", "COMPANY");
+            contact.JobTitle = Get("jobtitle", "JOB_TITLE");
+            contact.Email = Get("e-mail", "EMAIL");
+            contact.PhoneWork = Get("phone", "PHONE_NUMBER");
+            contact.PhoneMobile = Get("mobile", "MOBILE_PHONE_NUMBER");
+            contact.PhoneHome = Get("homephone", "PRIVATE_PHONE_NUMBER");
+            contact.Fax = Get("fax", "FAX_NUMBER");
+            contact.Street = Get("street", "STREET");
+            contact.City = Get("city", "CITY");
+            contact.PostalCode = Get("postcode", "POSTAL_CODE");
+            contact.State = Get("state", "STATE");
+            contact.Country = Get("country", "COUNTRY");
+            contact.Website = Get("url", "URL");
+            contact.Notes = Get("comment", "NOTE");
+            contact.Salutation = Get("salutation", "SALUTATION");
+            contact.Title = Get("title", "TITLE");
+            contact.Birthday = Get("birthday", "BIRTHDAY");
 
             return contact;
         }
 
         private JObject MapToStarface(UnifiedContact contact)
         {
-            var attrs = new JArray();
-
-            void AddAttr(string displayKey, string name, string value)
+            JArray MakeAttrs(params (string displayKey, string name, string value)[] fields)
             {
-                if (!string.IsNullOrEmpty(value))
-                    attrs.Add(new JObject { ["displayKey"] = displayKey, ["name"] = name, ["value"] = value });
+                var arr = new JArray();
+                foreach (var (dk, n, v) in fields)
+                {
+                    if (!string.IsNullOrEmpty(v))
+                        arr.Add(new JObject { ["displayKey"] = dk, ["name"] = n, ["value"] = v });
+                }
+                return arr;
             }
 
-            AddAttr("NAME", "firstName", contact.FirstName);
-            AddAttr("SURNAME", "lastName", contact.LastName);
-            AddAttr("COMPANY", "company", contact.Company);
-            AddAttr("JOB_TITLE", "jobTitle", contact.JobTitle);
-            AddAttr("EMAIL", "email", contact.Email);
-            AddAttr("OFFICE_PHONE_NUMBER", "businessPhone", contact.PhoneWork);
-            AddAttr("MOBILE_PHONE_NUMBER", "mobilePhone", contact.PhoneMobile);
-            AddAttr("PRIVATE_PHONE_NUMBER", "homePhone", contact.PhoneHome);
-            AddAttr("FAX_NUMBER", "fax", contact.Fax);
-            AddAttr("STREET", "street", contact.Street);
-            AddAttr("CITY", "city", contact.City);
-            AddAttr("POSTAL_CODE", "postalCode", contact.PostalCode);
-            AddAttr("STATE", "state", contact.State);
-            AddAttr("COUNTRY", "country", contact.Country);
-            AddAttr("URL", "website", contact.Website);
-            AddAttr("NOTE", "notes", contact.Notes);
-            AddAttr("SALUTATION", "salutation", contact.Salutation);
-            AddAttr("TITLE", "title", contact.Title);
-            AddAttr("BIRTHDAY", "birthday", contact.Birthday);
+            // Block-Struktur wie von der Starface erwartet
+            var contactBlock = MakeAttrs(
+                ("NAME", "firstname", contact.FirstName),
+                ("SURNAME", "familyname", contact.LastName),
+                ("COMPANY", "company", contact.Company)
+            );
+
+            var addressBlock = MakeAttrs(
+                ("USER_DEFINED", "street", contact.Street),
+                ("POSTAL_CODE", "postcode", contact.PostalCode),
+                ("USER_DEFINED", "city", contact.City),
+                ("USER_DEFINED", "state", contact.State),
+                ("USER_DEFINED", "country", contact.Country)
+            );
+
+            var phoneBlock = MakeAttrs(
+                ("PHONE_NUMBER", "phone", contact.PhoneWork),
+                ("PRIVATE_PHONE_NUMBER", "homephone", contact.PhoneHome),
+                ("MOBILE_PHONE_NUMBER", "mobile", contact.PhoneMobile),
+                ("FAX_NUMBER", "fax", contact.Fax)
+            );
+
+            var emailBlock = MakeAttrs(
+                ("EMAIL", "e-mail", contact.Email),
+                ("URL", "url", contact.Website),
+                ("USER_DEFINED", "comment", contact.Notes)
+            );
+
+            var blocks = new JArray();
+            blocks.Add(new JObject
+            {
+                ["name"] = "contact",
+                ["resourceKey"] = "de.vertico.starface.addressbook.block.label_contact",
+                ["attributes"] = contactBlock
+            });
+            blocks.Add(new JObject
+            {
+                ["name"] = "address",
+                ["resourceKey"] = "de.vertico.starface.addressbook.block.label_address",
+                ["attributes"] = addressBlock
+            });
+            blocks.Add(new JObject
+            {
+                ["name"] = "telephone",
+                ["resourceKey"] = "de.vertico.starface.addressbook.block.label_telephone",
+                ["attributes"] = phoneBlock
+            });
+            blocks.Add(new JObject
+            {
+                ["name"] = "email",
+                ["resourceKey"] = "de.vertico.starface.addressbook.block.label_email",
+                ["attributes"] = emailBlock
+            });
 
             return new JObject
             {
                 ["id"] = contact.StarfaceId ?? "",
-                ["blocks"] = new JArray
-                {
-                    new JObject
-                    {
-                        ["name"] = "contact",
-                        ["resourceKey"] = "contact",
-                        ["attributes"] = attrs
-                    }
-                }
+                ["blocks"] = blocks
             };
         }
 

src/StarfaceOutlookSync/Services/SyncEngine.cs

@@ -53,6 +53,7 @@ namespace StarfaceOutlookSync.Services
                 Log("Verbinde mit Starface...");
                 using (var starface = new StarfaceApiClient(profile.StarfaceConnection))
                 {
+                    starface.OnDebug += (msg) => Log(msg);
                     var loginOk = await starface.LoginAsync();
                     if (!loginOk)
                     {

src/StarfaceOutlookSync/StarfaceOutlookSync.csproj

@@ -7,9 +7,9 @@
     <AssemblyTitle>Starface Outlook Sync</AssemblyTitle>
     <Company>HackerSoft - Hacker-Net Telekommunikation</Company>
     <Product>Starface Outlook Sync</Product>
-    <Version>0.0.0.2</Version>
-    <AssemblyVersion>0.0.0.2</AssemblyVersion>
-    <FileVersion>0.0.0.2</FileVersion>
+    <Version>0.0.0.12</Version>
+    <AssemblyVersion>0.0.0.12</AssemblyVersion>
+    <FileVersion>0.0.0.12</FileVersion>
     <Description>Synchronisiert Outlook-Kontakte mit Starface Telefonanlage</Description>
     <Copyright>Stefan Hacker - HackerSoft</Copyright>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
@@ -19,7 +19,6 @@
 
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="Microsoft.Office.Interop.Outlook" Version="15.0.4797.1004" />
   </ItemGroup>
 
 </Project>

src/StarfaceOutlookSync/UI/AboutForm.cs

@@ -27,7 +27,7 @@ namespace StarfaceOutlookSync.UI
 
             var lblVersion = new Label
             {
-                Text = "Version 0.0.0.2",
+                Text = "Version 0.0.0.12",
                 Left = 0, Top = 56, Width = 340, Height = 20,
                 TextAlign = ContentAlignment.MiddleCenter,
                 ForeColor = Color.Gray

src/StarfaceOutlookSync/UI/MainForm.cs

@@ -18,7 +18,7 @@ namespace StarfaceOutlookSync.UI
         private NotifyIcon _trayIcon;
         private ContextMenuStrip _trayMenu;
         private ListView _profileList;
-        private Button _btnNew, _btnEdit, _btnDelete, _btnSync, _btnInfo;
+        private Button _btnNew, _btnEdit, _btnDelete, _btnSync, _btnSettings, _btnInfo;
         private StatusStrip _statusBar;
         private ToolStripStatusLabel _statusLabel;
         private Timer _autoSyncTimer;
@@ -29,6 +29,30 @@ namespace StarfaceOutlookSync.UI
             SetupTrayIcon();
             SetupAutoSync();
             RefreshProfileList();
+
+            // Minimiert starten falls in Einstellungen aktiviert
+            var settings = UserSettings.Load();
+            if (settings.StartMinimized)
+            {
+                WindowState = FormWindowState.Minimized;
+                ShowInTaskbar = false;
+                Visible = false;
+            }
+        }
+
+        protected override void SetVisibleCore(bool value)
+        {
+            // Beim ersten Anzeigen pruefen ob minimiert gestartet werden soll
+            if (!IsHandleCreated)
+            {
+                var settings = UserSettings.Load();
+                if (settings.StartMinimized)
+                {
+                    CreateHandle();
+                    value = false;
+                }
+            }
+            base.SetVisibleCore(value);
         }
 
         private void InitializeComponent()
@@ -76,10 +100,13 @@ namespace StarfaceOutlookSync.UI
             _btnSync = new Button { Text = "Jetzt synchronisieren", Width = 150, Height = 30 };
             _btnSync.Click += async (s, e) => await SyncSelectedProfile();
 
+            _btnSettings = new Button { Text = "Einstellungen", Width = 100, Height = 30 };
+            _btnSettings.Click += (s, e) => ShowSettings();
+
             _btnInfo = new Button { Text = "Info", Width = 50, Height = 30 };
             _btnInfo.Click += (s, e) => ShowAbout();
 
-            buttonPanel.Controls.AddRange(new Control[] { _btnNew, _btnEdit, _btnDelete, _btnSync, _btnInfo });
+            buttonPanel.Controls.AddRange(new Control[] { _btnNew, _btnEdit, _btnDelete, _btnSync, _btnSettings, _btnInfo });
 
             // Statusbar
             _statusBar = new StatusStrip();
@@ -283,6 +310,14 @@ namespace StarfaceOutlookSync.UI
                 _statusLabel.Text = text;
         }
 
+        private void ShowSettings()
+        {
+            using (var settings = new SettingsForm())
+            {
+                settings.ShowDialog(this);
+            }
+        }
+
         private void ShowAbout()
         {
             using (var about = new AboutForm())

src/StarfaceOutlookSync/UI/OutlookFolderBrowserForm.cs

@@ -0,0 +1,125 @@
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+using System.Collections.Generic;
+
+namespace StarfaceOutlookSync.UI
+{
+    public class OutlookFolderBrowserForm : Form
+    {
+        private TreeView _tree;
+        private Button _btnOk, _btnCancel;
+        public string SelectedFolderPath { get; private set; } = "";
+        public string SelectedFolderName { get; private set; } = "";
+
+        public OutlookFolderBrowserForm(List<string> folderPaths, string currentSelection)
+        {
+            InitializeComponent();
+            BuildTree(folderPaths, currentSelection);
+        }
+
+        private void InitializeComponent()
+        {
+            Text = "Outlook-Ordner waehlen";
+            Size = new Size(400, 450);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            StartPosition = FormStartPosition.CenterParent;
+            Font = new Font("Segoe UI", 9);
+
+            var lblInfo = new Label
+            {
+                Text = "Bitte waehlen Sie den Outlook-Kontaktordner fuer die Synchronisation:",
+                Left = 12, Top = 12, Width = 360, Height = 36
+            };
+
+            _tree = new TreeView
+            {
+                Left = 12, Top = 52, Width = 360, Height = 310,
+                HideSelection = false,
+                ShowLines = true,
+                ShowPlusMinus = true,
+                ShowRootLines = true
+            };
+            _tree.DoubleClick += (s, e) => { if (_tree.SelectedNode?.Tag != null) SelectAndClose(); };
+
+            _btnOk = new Button
+            {
+                Text = "OK", Left = 210, Top = 372, Width = 75, Height = 28,
+                DialogResult = DialogResult.None
+            };
+            _btnOk.Click += (s, e) => SelectAndClose();
+
+            _btnCancel = new Button
+            {
+                Text = "Abbrechen", Left = 292, Top = 372, Width = 80, Height = 28,
+                DialogResult = DialogResult.Cancel
+            };
+
+            Controls.AddRange(new Control[] { lblInfo, _tree, _btnOk, _btnCancel });
+            AcceptButton = _btnOk;
+            CancelButton = _btnCancel;
+        }
+
+        private void BuildTree(List<string> folderPaths, string currentSelection)
+        {
+            _tree.Nodes.Clear();
+            var nodeMap = new Dictionary<string, TreeNode>();
+
+            foreach (var path in folderPaths)
+            {
+                // Pfad: \\Store\Kontakte\Unterordner
+                var parts = path.TrimStart('\\').Split('\\');
+                string runningPath = "";
+                TreeNode parent = null;
+
+                for (int i = 0; i < parts.Length; i++)
+                {
+                    runningPath += "\\" + parts[i];
+
+                    if (!nodeMap.ContainsKey(runningPath))
+                    {
+                        var node = new TreeNode(parts[i]);
+                        // Nur Blatt-Knoten oder bekannte Pfade sind waehlbar
+                        if (i == parts.Length - 1)
+                            node.Tag = path; // Vollstaendiger Pfad
+
+                        if (parent == null)
+                            _tree.Nodes.Add(node);
+                        else
+                            parent.Nodes.Add(node);
+
+                        nodeMap[runningPath] = node;
+
+                        // Aktuellen Ordner vorauswaehlen
+                        if (path == currentSelection)
+                        {
+                            _tree.SelectedNode = node;
+                            node.EnsureVisible();
+                        }
+                    }
+
+                    parent = nodeMap[runningPath];
+                }
+            }
+
+            _tree.ExpandAll();
+        }
+
+        private void SelectAndClose()
+        {
+            if (_tree.SelectedNode?.Tag == null)
+            {
+                MessageBox.Show("Bitte einen Kontaktordner waehlen.", "Hinweis",
+                    MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            SelectedFolderPath = _tree.SelectedNode.Tag.ToString();
+            SelectedFolderName = _tree.SelectedNode.Text;
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+    }
+}

src/StarfaceOutlookSync/UI/ProfileEditorForm.cs

@@ -15,14 +15,18 @@ namespace StarfaceOutlookSync.UI
         private readonly bool _isNew;
 
         // Controls
-        private TextBox _txtName, _txtHost, _txtPort, _txtLoginId, _txtPassword;
+        private TextBox _txtName, _txtHost, _txtPort, _txtLoginId, _txtPassword, _txtOutlookFolder;
         private CheckBox _chkSsl, _chkEnabled;
-        private ComboBox _cmbAddressBook, _cmbOutlookFolder, _cmbDirection;
+        private ComboBox _cmbAddressBook, _cmbDirection;
+        private Button _btnBrowseFolder;
         private NumericUpDown _numAutoSync;
         private Button _btnTest, _btnLoadBooks, _btnSave, _btnCancel;
         private Label _lblTestResult;
 
         private List<StarfaceAddressBook> _addressBooks = new List<StarfaceAddressBook>();
+        private List<string> _outlookFolderPaths = new List<string>();
+        private string _selectedOutlookPath = "";
+        private string _selectedOutlookName = "";
 
         public ProfileEditorForm(SyncProfile profile)
         {
@@ -87,8 +91,11 @@ namespace StarfaceOutlookSync.UI
             panel.Controls.Add(MakeSectionLabel("Outlook-Einstellungen", 12, y)); y += 26;
 
             panel.Controls.Add(MakeLabel("Kontakte-Ordner:", 12, y)); y += 22;
-            _cmbOutlookFolder = new ComboBox { Left = 12, Top = y, Width = 420, DropDownStyle = ComboBoxStyle.DropDownList };
-            panel.Controls.Add(_cmbOutlookFolder); y += 32;
+            _txtOutlookFolder = new TextBox { Left = 12, Top = y, Width = 330, ReadOnly = true, BackColor = SystemColors.Window };
+            _btnBrowseFolder = new Button { Text = "Durchsuchen...", Left = 348, Top = y - 1, Width = 84, Height = 24 };
+            _btnBrowseFolder.Click += (s, e) => BrowseOutlookFolder();
+            panel.Controls.Add(_txtOutlookFolder);
+            panel.Controls.Add(_btnBrowseFolder); y += 32;
 
             panel.Controls.Add(MakeLabel("Sync-Richtung:", 12, y)); y += 22;
             _cmbDirection = new ComboBox { Left = 12, Top = y, Width = 250, DropDownStyle = ComboBoxStyle.DropDownList };
@@ -132,18 +139,15 @@ namespace StarfaceOutlookSync.UI
             {
                 using (var outlook = new OutlookContactsService())
                 {
-                    var folders = outlook.GetContactFolderPaths();
-                    _cmbOutlookFolder.Items.Clear();
-                    foreach (var f in folders)
-                        _cmbOutlookFolder.Items.Add(f);
-                    if (folders.Count > 0)
-                        _cmbOutlookFolder.SelectedIndex = 0;
+                    _outlookFolderPaths = outlook.GetContactFolderPaths();
                 }
             }
-            catch
+            catch (Exception ex)
             {
-                _cmbOutlookFolder.Items.Add("\\\\Kontakte");
-                _cmbOutlookFolder.SelectedIndex = 0;
+                MessageBox.Show(
+                    $"Outlook-Kontaktordner konnten nicht geladen werden:\n{ex.Message}\n\nIst Outlook gestartet?",
+                    "Outlook-Verbindung", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                _outlookFolderPaths = new List<string>();
             }
 
             // Bestehende Werte laden
@@ -160,15 +164,10 @@ namespace StarfaceOutlookSync.UI
 
                 _cmbDirection.SelectedIndex = (int)_existingProfile.SyncDirection;
 
-                // Outlook-Ordner auswaehlen
-                for (int i = 0; i < _cmbOutlookFolder.Items.Count; i++)
-                {
-                    if (_cmbOutlookFolder.Items[i].ToString() == _existingProfile.OutlookFolderPath)
-                    {
-                        _cmbOutlookFolder.SelectedIndex = i;
-                        break;
-                    }
-                }
+                // Outlook-Ordner
+                _selectedOutlookPath = _existingProfile.OutlookFolderPath;
+                _selectedOutlookName = _existingProfile.OutlookFolderName;
+                _txtOutlookFolder.Text = _selectedOutlookPath;
 
                 // Adressbuch
                 if (_existingProfile.StarfaceAddressBook != null)
@@ -178,6 +177,26 @@ namespace StarfaceOutlookSync.UI
                     _cmbAddressBook.SelectedIndex = 0;
                 }
             }
+            else if (_outlookFolderPaths.Count > 0)
+            {
+                // Standard-Ordner vorauswaehlen
+                _selectedOutlookPath = _outlookFolderPaths[0];
+                _selectedOutlookName = _selectedOutlookPath.Substring(_selectedOutlookPath.LastIndexOf('\\') + 1);
+                _txtOutlookFolder.Text = _selectedOutlookPath;
+            }
+        }
+
+        private void BrowseOutlookFolder()
+        {
+            using (var browser = new OutlookFolderBrowserForm(_outlookFolderPaths, _selectedOutlookPath))
+            {
+                if (browser.ShowDialog(this) == DialogResult.OK)
+                {
+                    _selectedOutlookPath = browser.SelectedFolderPath;
+                    _selectedOutlookName = browser.SelectedFolderName;
+                    _txtOutlookFolder.Text = _selectedOutlookPath;
+                }
+            }
         }
 
         private StarfaceConnection GetConnection()
@@ -292,10 +311,12 @@ namespace StarfaceOutlookSync.UI
                 return;
             }
 
-            var selectedFolder = _cmbOutlookFolder.SelectedItem?.ToString() ?? "";
-            var folderName = selectedFolder;
-            if (folderName.Contains("\\"))
-                folderName = folderName.Substring(folderName.LastIndexOf('\\') + 1);
+            if (string.IsNullOrEmpty(_selectedOutlookPath))
+            {
+                MessageBox.Show("Bitte einen Outlook-Kontaktordner waehlen.",
+                    "Fehler", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                return;
+            }
 
             var profile = new SyncProfile
             {
@@ -303,8 +324,8 @@ namespace StarfaceOutlookSync.UI
                 Name = _txtName.Text.Trim(),
                 StarfaceConnection = GetConnection(),
                 StarfaceAddressBook = _addressBooks[_cmbAddressBook.SelectedIndex],
-                OutlookFolderPath = selectedFolder,
-                OutlookFolderName = folderName,
+                OutlookFolderPath = _selectedOutlookPath,
+                OutlookFolderName = _selectedOutlookName,
                 SyncDirection = (SyncDirection)_cmbDirection.SelectedIndex,
                 Enabled = _chkEnabled.Checked,
                 AutoSyncIntervalMinutes = (int)_numAutoSync.Value,

src/StarfaceOutlookSync/UI/SettingsForm.cs

@@ -0,0 +1,62 @@
+using System.Drawing;
+using System.Windows.Forms;
+using StarfaceOutlookSync.Models;
+
+namespace StarfaceOutlookSync.UI
+{
+    public class SettingsForm : Form
+    {
+        private CheckBox _chkStartMinimized;
+        private Button _btnSave, _btnCancel;
+        private readonly UserSettings _settings;
+
+        public SettingsForm()
+        {
+            _settings = UserSettings.Load();
+            InitializeComponent();
+        }
+
+        private void InitializeComponent()
+        {
+            Text = "Einstellungen";
+            Size = new Size(350, 180);
+            FormBorderStyle = FormBorderStyle.FixedDialog;
+            MaximizeBox = false;
+            MinimizeBox = false;
+            StartPosition = FormStartPosition.CenterParent;
+            Font = new Font("Segoe UI", 9);
+
+            _chkStartMinimized = new CheckBox
+            {
+                Text = "Minimiert starten (nur im System Tray)",
+                Left = 20, Top = 24, AutoSize = true,
+                Checked = _settings.StartMinimized
+            };
+
+            _btnSave = new Button
+            {
+                Text = "Speichern", Left = 80, Top = 100, Width = 85, Height = 28,
+                DialogResult = DialogResult.None
+            };
+            _btnSave.Click += (s, e) => Save();
+
+            _btnCancel = new Button
+            {
+                Text = "Abbrechen", Left = 174, Top = 100, Width = 85, Height = 28,
+                DialogResult = DialogResult.Cancel
+            };
+
+            Controls.AddRange(new Control[] { _chkStartMinimized, _btnSave, _btnCancel });
+            AcceptButton = _btnSave;
+            CancelButton = _btnCancel;
+        }
+
+        private void Save()
+        {
+            _settings.StartMinimized = _chkStartMinimized.Checked;
+            _settings.Save();
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+    }
+}